default.

llvm-svn: 56471

llvm-svn: 56469

llvm-svn: 56453

Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC.

llvm-svn: 56436

llvm-svn: 56419

sarl    $3, %ecx

instead of:

movl    $3, %ecx
sarl    %cl, %edx

This shrinks fast isel 176.gcc by about 2000 instructions (.3%)

llvm-svn: 56413

llvm-svn: 56391

llvm-svn: 56378

llvm-svn: 56377

llvm-svn: 56376

results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.

llvm-svn: 56371

catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.

llvm-svn: 56320

llvm-svn: 56311

over having it in a register. And wait until after checking type
legality before requesting that the callee address be placed in a
register. Also, fix support for calls with void return type.

This speeds up fast-isel isel time by about 15% and reduces
instruction counts by about 3% overall on certain testcases. It also
changes many indirect calls to direct calls.

llvm-svn: 56292

up some new ascii art to illustrate what it does. This change
currently has no effect on generated code.

llvm-svn: 56270

Apologies for the thrashing.

llvm-svn: 56251

- Add linkage to SymbolSDNode (default to external).
- Change ISD::ExternalSymbol to ISD::Symbol.
- Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.

llvm-svn: 56249

isImmediate(), isRegister(), and friends, to avoid confusion
about having two different names with the same meaning. I'm
not attached to the longer names, and would be ok with
changing to the shorter names if others prefer it.

llvm-svn: 56189

Currently it just holds the calling convention and flags
for isVarArgs and isTailCall.

And it has several utility methods, which eliminate magic
5+2*i and similar index computations in several places.

CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle
nodes that are not CSE'd gracefully.

llvm-svn: 56183

with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.

llvm-svn: 56159

When tailcallopt is enabled all fastcc calls must have an aligned argument stack size. Add a test case.

llvm-svn: 56119

llvm-svn: 56117

cmp-and-swap reversed the Cmp and Swap arguments; comments
make it clear this is unintentional.  Unfortunately, the
x86 BE had a compensating reversal, which is removed here.
PPC is OK.

From inspection of the Alpha code I think it is OK, but
if somebody has that platform please check it out.  I
cannot test on that platform.

llvm-svn: 56091

If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before giving up.  This fixes 445.gobmk on
X86-64 in fast isel.

llvm-svn: 56088

llvm-svn: 56070

to static allocas. As part of this change, refactor the
address mode code for laods and stores.

llvm-svn: 56066

Fix a fastcc + sret bug. If fastcc and sret, callee doesn't need to pop the hidden struct ptr; Re-enable fastcc.

llvm-svn: 56061

Patch by Paul Redmond.

llvm-svn: 56059

llvm-svn: 56055

convention (not related to recent Ada testsuite
failures).

llvm-svn: 56054

a slew of Ada testsuite failures on x86-32 linux.
Seems to be related to the use of float.

llvm-svn: 56053

llvm-svn: 56005

No functionality change.

llvm-svn: 55996

Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand.

llvm-svn: 55975

objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973

llvm-svn: 55957

llvm-svn: 55956

Now with fix, which prevents subtle codegen bug to trigger on darwin.
No fix for bug though, it's still there.

llvm-svn: 55955

llvm-svn: 55954

llvm-svn: 55938